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Barn Owls, LLC

Industrial or other facility, (Unknown City), Wyoming. NPDES permit WY0095761 expired Dec 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form OM twice a year (8 values), outfall DMP1 form DM twice a year (6 values), outfall 001 form OS twice a year, outfall BBCP form CP twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 41 required values missing, 9 of 32 reports late

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
Specific conductancedaily maximum≤ 7500 umho/cmall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Sulfide, total [as S]daily maximumreport only (ug/L)all year001
Sulfide, total [as S]daily maximumreport only (ug/L)all year001
Radium 226, totaldaily maximum≤ 60 pCi/Lall year001
Chloridedaily maximum≤ 2000 mg/Lall year001
Flowdaily maximumreport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
Sulfatedaily maximum≤ 3000 mg/Lall year001
Flow, well waterdaily maximumreport only (MGD)all yearBBCP
Flow, well waterdaily maximumreport only (MGD)all yearBBCP
Produced water, oil and greasedaily maximum≤ 10 mg/Lall yearBBCP
Produced water, oil and greasedaily maximum≤ 10 mg/Lall yearBBCP
Produced water, flowdaily maximumreport only (MGD)all yearBBCP
Produced water, flowdaily maximumreport only (MGD)all yearBBCP
pHinstantaneous minimumreport only (SU)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1
pHinstantaneous maximumreport only (SU)all yearDMP1
pHinstantaneous maximumreport only (SU)all yearDMP1
Sulfide, total [as S]daily maximumreport only (ug/L)all yearDMP1
Sulfide, total [as S]daily maximumreport only (ug/L)all yearDMP1

Cited limits by parameter: Wyoming's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0095761 · MCP: https://passage-data.com/mcp